West Ham United are reportedly closing in on a deal to sign Luis Guilherme from Palmeiras this summer. Luis Guilherme is thought to be on the verge of joining West Ham in a £20 million deal – one that could eventually rise to £25.5 million. The 18-year-old is a left-footed right winger by trade, but he is capable of playing anywhere across the front-line. Julen Lopetgui desperately needs to bolster his attacking ranks at the London Stadium this summer, and many thought he would bring in an established name. However, West Ham are clearly going down the route of a youngster with huge potential, …